Transcript Computer components: hardware

Unit 2
Hardware and software
© Oxford University Press España S. A., 2012
What do we know?
What is computer science?
What is the name of each of these devices?
What does each device do: input, output or processing?
Computer components: hardware
What is this computer component called?
What is the function of the CPU?
Computer components: hardware
What types of storage devices can you see?
Which of these storage devices is best for quick access and sharing?
Optical storage devices
What types of discs can you see in this image?
What type of disc has the greatest storage capacity?
Peripheral devices
Do you recognise any of these ports? What are they used for?
Which ports are for input, output and input/output?
Computer components: hardware
Can you locate the CPU (microprocessor) on this motherboard?
Where do you think the name ‘motherboard’ comes from?
Peripheral devices
What is each one of these devices called?
What does each of these devices do: input, output or input/output?
Operating systems
What does an operating system do?
What elements can you see on these operating system desktops?
The Windows® operating system
Why do you think this operating system is called ‘Windows’?
Can you see these buttons: close, maximise and minimise?
Windows applications: Word
What do we use Microsoft Word for?
How can you use Word for your technology projects?
The Linux® operating system
What is the main reason that many computer users choose Linux?
Can you see any differences between the Linux and Windows interface?
Open-source applications: OpenOffice Impress
What do we use Impress for?
How can you use Impress in your technology projects?
New developments in hardware
What is this device called?
Can you think of any advantages it has over printed books?
What have we learned?
Computer science
The set of techniques and knowledge necessary to automatically process
information with a computer.
Use a binary encoding system.
Computers
Hardware.
Components
Software.
Central processing units
Memories
Hardware
Storage devices
RAM, ROM.
Magnetic, optical, solid-state.
Input: keyboard, mouse, scanner, web camera, barcode
reader, touch screen, joystick.
Peripheral devices
Output: monitor, printer.
Input / output: modem, PDA, mobile telephones, digital
cameras.
What have we learned?
The set of programs or instructions that start up the computer and process data
so that we can use it.
Software
Applications.
Types
Multimedia programs.
Operating systems.
Operating
system
Office
software
Allows us to store and organise files, folders and programs on the computer, and
to search for files.
Examples
Windows, Linux, Mac OS.
The set of programs that are used to organise, store and process data and
transmit information.
Types
Word processors, spreadsheets, presentation
programs, database programs.